Stockman



(No M'odel.)

G. W. STOCKMAN.

WATER GOOLBR POR RBFRIGBRATING AND 10E MACHINES. No. 304,871. Patent-ed Sept. 9., 1884.

UNrrnn rares ArtNr trice.

GEORGE VASHINGTON STOCKMAN, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO ISABELL STOOKMAN, OF SAME PLACE.

WATER-COOLER FOR REFRIGERATING AND ICE MACHINES.

SPECIFICATION forming part of Letters Patent No. 304,871, dated September 9, 1884.

`Application filed November 15, lSf. (No model.)

.To ail whom it may con/cern.'

Beit known that I, GEORGE W. STOCKMAN, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Vater-Oooler for Refrigerating and Ice-Mak ing Machines, of which the following is aspeci iication. My invention relates to improvements in 1o water-coolers, by which the temperature of the water conta-ined in the cooler is lowered through the agency of the refrigeratingpower of a highly-volatile gas or ether; and the object of my improvement is to reduce the temperature ofthe water from which the ice is to be made to as low a degree as possible before the water is introduced into the freezing-cans. I attain this object by the mechanism illustrated in t-he accompanying drawings, in

2O which- Figure 1 isla vertical section, and Fig. 2 a

horizontal section or plan, of my cooler.

Similar letters refer to similar parts throughout the several views.

2 5 A is the water-cooler; B, a tank containing the water-supply for the cooler A; -b, a pipe leading from the tank to the cooler; O, a pump for furnishing the water directly to the cooler, when so desired, without passing through the 3o tank B c, a water-pipeleading from the pump .C tothe cooler A; D, a liqueiier where the 'liquefied ammonia or other gas is collected before it is allowed to expand through the refrigerating-box E; d, a pipe leading from the n 5 liqueier D to the Watercooler `A; d and d2,

pipes leading from the liqueiier D to the distributing-manifold F in the expansion or refrigerating box E. E is the expansion or refrigerating boX; F, the distributing-manifold,

40 and G the collecting-manifold; g, a pipe leading from `G to A. H H2 H3 H* H5 H6 HT H3 H9 H10 are stop-valves for regulating the flow of water or gas through their respective pipes. I is the outlet-pipe for the water in the cooler A. J is a petcock to admit the air. to the cooler while the water is being drawn out through the pipe I. K is a pipe for carrying 01T the gas after it has passed through the cooler. L is the pipe through which the con- 5o densed ammonia or other gas passes in going from the evaporating-retort to the liqueer D.

liqueiier D.

m and m. are chambers in the opposite ends of the cooler. P P P P P are independent coils of pipe running .from the distributingmanifold F to the collecting-manifold G.

The cooler A is a long tubular vessel, of sheet iron, having at each end the chambers m and m', partitioned off from the body of the vessel and connected byanumberof pipes, which run parallel with the side of the cooler and empty from one chainberinto the other. The chamber m is connected by the pipe g with the collecting-manifold G in thebottom of thel expansion-box, and by the pipe d with the The chamber m in the opposite end has an outlet-pipe, K, connecting it with the balance of the refrigerating apparatus, which, not being necessary toillustrate my invention, is not shown in the drawings. The central chamber or body of the cooler is cony.) nected by the pipe b with the reservoir B, and by the pipe c with the pump C, andthe water entering the cooler through these pipes is emptied through thepipe I. Theliqueer D is the receptacle for the condensed gas, which 7 5 is here collected in a liquefied form as it comes from the evaporating retort. From D the liqueiied gas is conveyed through the pipes d and d2 to the distributingmanitold F, and also through the pipe d to the water-cooler A. 8o The independent coils of pipeP P P P P lead from the distribeting-manifold F and empty into the collecting-manifold G. From G the partially spent gas which has just come through the pipes Pis forced through 'the pipe S 5 g into the chamber m in the cooler A, where it passes, by means of the parallel pipes, into the chamber m at the opposite end of the cooler, and from there is discharged through the pipe K. 9o

The practical working of my machine is as follows, viz: The water from the tank Bis admitted into the cooler A by opening the stopvalves H and H3; or, if preferable, the valve H may be closed and the valves IP and H3 95 opened and the water pumped directly from the force-pump C through the pipe c into the cooler, where in both cases it ills the central chamber or body of the vessel. The liquefied gas in the liqueer D is forced by pressure roo through the pipes d and cl2 into the distributing-manifold F in the upper cud of theeXpansion-box E. Here it is allowed to expand and exert its refrigcrating-power, and after passing through the coils l? is collected in the collecting-manifold G. The refrigerating-power of the gas at this stage is never more than partially exhausted, and instead of immediately absorbing it in dilute liquid and carrying it directly to the evaporating-retort to be evaporated I utilize the remaining refrigeratingpower by passing asutlicient portion of the gas through the pipe g into the chamber m. This chamber m, as before described, is connected by the parallel pipes with the chamber m, and the gas is free to circulate from one chamber to the other.

Thebody of the cooler,as already explained, is lled with water, which completely envelops the pipes connecting the chambers m and M, and the gas circulating from mf to on through the parallel pipes abstracts the heat by virtue of its refrigerating-power from the water, and, passing out through the pipe K, leaves the water reduced in temperature.

The valve I u is to regulate the iiow of vgas from the cooler.

If preferred, instead of utilizing the partially-spent gas from the expansion-box, the stop-valve H in the pipe g 'may be closed and the valve in the pipe d opened, and the fresh liquid gas admitted directly from the liquetier D.

The gas and the water should enter the cooler at opposite ends of the vessel.

\Vhen the water in the cooler is wanted for any purpose, the valve H3 in the supply-pipe is closed and the valve HAL in the drain-pipe I opened, and when the petcock J on the top of the cooler is turned to admit the air the water will iiow from the pipe I.

The drain-pipe I should be attached to the bottom of the cooler instead of the side, as shown in t-he drawings, as when the cooler is to stand without attention for any length of time it is necessary that it be free from water to prevent its freezing up, and to drain all of the water from the cooler it is necessary that the drain-pipe be connected at the bottom.

Having thus fully described my invention, what I claim as new, and wish to secure by Letters Patent, is-

l. In refrigerating :indice-making machines,

the water-cooler A, so constructed that the partially-spent gas from the expansion or refrigerating box E may pass through the cooler Awhile the cooler is filled with water, and ater exerting its remaining refrigerating-power in cooling the water pass out of the cooler without becoming itself absorbed by the water therein, substantially as described, and for the purposes specified.

2. In refrigeratin g and ice-makin g machines, the water-cooler A, so constructed that condensed gas from the liqueer D may pass through the cooler A while the cooler is filled with water, and after exerting its refrigerating-power in cooling the water pass out of the cooler without becoming itself absorbed bythe water therein, substantially as described, and for the purposes mentioned and set forth.

3. The water-coolcrA,with inside longitudinal pipes connect-ing the chamber m with the chamber m and forming a conduit for a current of refrigerating-gas from the expansionbox E or from the liquefier D, the gas enter ing the chamber m through the pipe g or through the pipe d, and passing out of the opposite chambermi, th rough the pipe K. the cen tral chamber or body of the cooler to be iilled with water, which enters the cooler from the tanl; B through the pipe I, or from the pump C through the pipe c, and and is discharged through the pipe I, the cooler being provided with the petcocl; J, and the pipes b, c, d, g, I.

and K with the stop-valves H H2 H:s H5 H Hk H10, respectively, and al1 being arranged and combined as described, and for the purposes specified.

4. rIhe water-cooler A, so arranged that the water to be cooled may be supplied from the tank B or directly from the pump C, as dcscribed and specified.

5. In a water-cooler, the shell A, chamber m, chamber m and connecting-pipes, the pipe g, valve H, pipe d, valve IP, pipe K, valve H10, pipe b, valves Hand H3, pipe c and valve H?, pipe I and valve H, and the petcock J, all combined as described, and for the pur poses mentioned and set forth.

. GEORGE WASIIINGCION STOCKHAN.

XVitnesses:

L. XV. MANsFInLD, Amos L. KREwsoN. 

